Assessments of the new cutoff value and the accuracy of Intraoperative flow cytometer for the intraoperative frozen section diagnosis and the intraoperative frozen section diagnosis of the resection margin in malignant brain tumor surgery

Assessments of intraoperative flow cytometer - IFC-A

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000049170

Enrollment

100

Registered

2022-10-10

Start date

2020-05-22

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Malignant Brain Tumor

Interventions

Intraoperative flow cytometer

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) All patients with gliomas (benign and malignant), metastatic brain tumors, and other malignant brain tumors who undergo surgery in our department. 2) Patients of any age and gender. 3) Written consent to participate in the study must be obtained from the patient or a substitute author.

Exclusion criteria

Exclusion criteria: 1) Patients with a preoperative diagnosis of a non-glioma benign brain tumor. 2) For tumors of obvious intraventricular origin with minimal intracerebral attachment. 3) For tumors within the brain trunk. 4) In the case of tumors in the mesencephalic/pituitary region.

Design outcomes

Primary

Measure	Time frame
calculation of malignant index level	—

Countries

Japan

Contacts

Public ContactKenichiroh Asano

Hirosaki University Graduate School of Medicine Neurosurgery

asanoken@hirosaki-u.ac.jp0172-39-5115

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026